MIL-DTL-38999 Series I connectors feature up to 128 contacts within an insert, designed for harsh environmental conditions with an operating temperature range of -65 °C to 200 °C. Available in various configurations, including front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding plugs for added versatility. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, ensuring secure and reliable connections. Constructed with high strength aluminum shells, they come in a range of plating options, from light iridescent yellow cadmium to black anodized aluminum, with RoHS certified cadmium-free finishes available. Suitable for military and industrial applications, MIL-DTL-38999 Series I connectors provide durable and efficient connectivity solutions in demanding environments.